<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- html不识别less语法 可以通过工具把less转成css -->
    <!-- <link rel="stylesheet" href="./7.less语法-1.less"> -->
    <link rel="stylesheet" href="./mystyle.css">
</head>
<body>
    <div class="container">
        <div class="center">
            <div class="inner"></div>
        </div>
    </div>
    <div class="box"></div>
</body>

</html>